Wetting agent comprising a polyethoxylated sorbitan ester and at least one mannosylerythritol lipid

Abstract

The present invention relates to a combination comprising a polyethoxylated (20) sorbitan monolaurate, at least one mannosylerythritol lipid and monopropylene glycol, the process for obtaining it and its use as a soil wetting agent. The invention also concerns solutions comprising such a combination.

1 . A combination comprising or consisting of:
 polyethoxylated (20) sorbitan monolaurate;   at least 1% by weight of at least one mannosylerythritol lipid;   monopropylene glycol; and   optionally a fatty acid and/or a fatty acid ester;   wherein the total quantity of polyethoxylated (20) sorbitan monolaurate and mannosylerythritol lipid(s) is at least 25% by weight;   wherein the percentages by weight being given relative to the weight of the combination.   
     
     
         2 . The combination according to  claim 1 , wherein the quantity of monopropylene glycol is at least 50% by weight relative to the weight of the combination. 
     
     
         3 . The combination according to  claim 1 , wherein the total quantity of polyethoxylated (20) sorbitan monolaurate is at least 20% by weight relative to the weight of the combination. 
     
     
         4 . A process for preparing a combination according to  claim 1 , comprising a step of mixing polyethoxylated (20) sorbitan monolaurate, at least one mannosylerythritol lipid, monopropylene glycol, and optionally a fatty acid and/or a fatty acid ester. 
     
     
         5 . A solution comprising a combination according to  claim 1 , and water. 
     
     
         6 . The solution according to  claim 5 , wherein the quantity of the combination is at least 0.1% by weight relative to the weight of the solution. 
     
     
         7 . The solution according to  claim 5 , further comprising a biostimulant and/or a pesticidal active ingredient. 
     
     
         8 . A process for preparing a solution comprising a step of mixing a combination according to  claim 1 , with water, and optionally a biostimulant and/or a pesticidal active ingredient. 
     
     
         9 . A soil wetting agent comprising a combination according to  claim 1 . 
     
     
         10 . A method for irrigation of a soil comprising irrigating the soil with a solution according to  claim 5 .